Take a small strip of clear sticky tape and place it over the flashlight LED on the back of your phone. Now gently colour the area directly above the LED blue. Place another piece of tape over the first one, being careful not to smudge the ink. Then repeat the first step but this time using the purple marker.Dec 26, 2016
Can a flashlight be used as a UV light?
A UV flashlight emits ultraviolet radiation - a type of light energy - that is not visible to the human eye. ... A UV flashlight takes the same shape and format as a standard white light flashlight, but instead of emitting white light, emits ultraviolet light. Virtually all UV flashlights use LED technology.
What gives off UV light at home?
Incandescent Bulbs Incandescent light bulbsIncandescent light bulbsA light-bulb produces light from electricity. In addition to lighting a dark space, they can be used to show an electronic device is on, to direct traffic, for heat, and for many other purposes.https://simple.wikipedia.org › wiki › Light_bulbLight bulb - Simple English Wikipedia, the free encyclopedia, the most commonly used light bulbs in homes, give off small amounts of UV light. The UV light emitted by these bulbs is so small that it's impossible for human health to be affected in any noticeable way. ... These bulbs emit only UVA rays.Apr 13, 2018
Can you simulate UV light?
While no current smartphone is technically capable of emitting UV light, you can mimic the effect of a black light using your phone's LED flash, a few markers, and some transparent tape.
Is there a UV light app?
"UV Light Ultraviolet" is a simulator of ultraviolet Light. In the app you can change and select the tone of color that you want (Deep purple variations), the time that you want the screen will be active and the brightness of your screen.